Fourth, field management. After the true leaves of the spinach are poured, the pure water is poured 1 time; 2 true leaves are combined with thinning and weeding, and the topdressing fertilizer is first diluted and then concentrated, and the manure is applied more recently; the top-dressing stage is top dressing 2-3 times per acre. Urea 5-10 kg. The soil remained moist after sowing in winter spinach. When 3-4 true leaves are used, proper control of the water is beneficial for wintering. 2-3 true leaves, seedlings 3-4 cm. According to the seedlings and the weather, the water and fertilizer are applied, and the human fecal urine is mainly decomposed. Frost and snow and ice weather should be covered with plastic film and shade net insulation, can also be covered with a small arch. After the spring, sunny weather was selected to chase the decomposed, faecal water in a timely manner to prevent early deflation. The early spring spinach must be covered with plastic film insulation, which can be directly covered on the surface. After emergence, the film is removed or replaced by a small shed. The small arch sheds cover the night cover and the clear rain cover makes the seedlings more visible and more stable. , And time seedlings. Follow-up fertilization water, in the early stage of the transformation of human faecal light, hard-working facilities, especially in the early 15 days before harvest to apply nitrogen available fertilizer. After the emergence of summer spinach, it is still necessary to cover the shade net, cover the shade with clear cover, and cover it as early as possible to facilitate cooling and heat preservation. Watering at the seedling stage should be performed in the morning or in the evening. After 2-3 true leaves, topdressing twice available nitrogen fertilizer. Water should be poured after each fertilization to promote growth. Fifth, pest control. Aphids sprayed with 40% dimethoate 1000 times, or 50% anti-influx 2000-3000 times spray; leaf miner flies with 50% phoxim EC 1000 times, or 80% trichlorfon powder 1000 times spray; frost Mycoticosis was sprayed with 58% Leidormil 500-fold, or 75% chlorothalonil 600-fold; anthrax was sprayed with 50% thiophanate-methyl 500-fold, or 50% carbendazim 700-fold spray. Sixth, timely harvest. General seedling height above 10 cm can be harvested in batches. About 15 days before one-time recovery, the leaves can be sprayed with 15-20 mg/kg of 90% O2, and additional urea or ammonium sulfate can be used to increase the yield. Seven, leave the seed. The sowing date of spinach sowing may be later than that of overwintering spinach. Drilling, spacing 20-23 cm. After returning to spring in spring, the male plants were removed and the early male plants were twitched. Some of the male plants were maintained so that the plant spacing was about 20 cm. Congestion period should not be more irrigation, so as to avoid thin and weak lodging buds, reduce seed production. After flowering, top dressing, irrigation and foliar spraying of 1%-2% calcium superphosphate clarified the seeds. The male plants were sown and the male plants were removed to facilitate ventilation. The stems and leaves are mostly yellow, the seeds are harvested when they are ripe, and they are threshed after a few days of ripening.
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